diff options
| author | Peter Zijlstra <peterz@infradead.org> | 2020-04-21 12:09:13 +0200 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2020-06-15 14:10:21 +0200 |
| commit | 64419ca67622974f46bf053a7e745d2d0d1c43ef (patch) | |
| tree | 10226b8c32f6de4a6a55a9f5d9ff467050f243d5 | |
| parent | sched,psci: Convert to sched_set_fifo*() (diff) | |
| download | linux-64419ca67622974f46bf053a7e745d2d0d1c43ef.tar.xz linux-64419ca67622974f46bf053a7e745d2d0d1c43ef.zip | |
sched,msm: Convert to sched_set_fifo*()
Because SCHED_FIFO is a broken scheduler model (see previous patches)
take away the priority field, the kernel can't possibly make an
informed decision.
Use sched_set_fifo(); Effectively changes prio from 16 to 50.
Cc: airlied@redhat.com
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
| -rw-r--r-- | drivers/gpu/drm/msm/msm_drv.c | 10 |
1 files changed, 1 insertions, 9 deletions
diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c index f6ce40bf3699..89a8b9c7e044 100644 --- a/drivers/gpu/drm/msm/msm_drv.c +++ b/drivers/gpu/drm/msm/msm_drv.c @@ -389,7 +389,6 @@ static int msm_drm_init(struct device *dev, struct drm_driver *drv) struct msm_kms *kms; struct msm_mdss *mdss; int ret, i; - struct sched_param param; ddev = drm_dev_alloc(drv, dev); if (IS_ERR(ddev)) { @@ -495,12 +494,6 @@ static int msm_drm_init(struct device *dev, struct drm_driver *drv) ddev->mode_config.funcs = &mode_config_funcs; ddev->mode_config.helper_private = &mode_config_helper_funcs; - /** - * this priority was found during empiric testing to have appropriate - * realtime scheduling to process display updates and interact with - * other real time and normal priority task - */ - param.sched_priority = 16; for (i = 0; i < priv->num_crtcs; i++) { /* initialize event thread */ priv->event_thread[i].crtc_id = priv->crtcs[i]->base.id; @@ -516,8 +509,7 @@ static int msm_drm_init(struct device *dev, struct drm_driver *drv) goto err_msm_uninit; } - ret = sched_setscheduler(priv->event_thread[i].thread, - SCHED_FIFO, ¶m); + ret = sched_set_fifo(priv->event_thread[i].thread); if (ret) dev_warn(dev, "event_thread set priority failed:%d\n", ret); |